{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.948831,-0.315784,0.000000,0.000000,0.176331,-0.529818,0.829579,0.000000,-0.261417,0.785476,0.560972,0.000000,-1669112.849406,5015155.795637,3557752.152091,1],    "boundingVolume": {    "region": [1.892031,0.595448,1.892127,0.595671,0.000000,8.815559]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/5/15_1181670.b3dm"}}}